Ring back tone

Users should be compensated for assigning advertising messages as their ring‐back tones. Compensation can be done in various ways, such as receiving free minutes, free SMSs, free ring‐back tones, donation to charity, downloadable application or WAP based benefit programs, etc.

Ring back tone. Caller Ring Back Tone for free. Also, included is a wearable feature app which makes your watch vibrate differently on the same situation. If you like this app, then you might also enjoy our other app that announces the callers name during a second call event. Safety starts with understanding how developers collect and share your data.

2. Sep 1, 2021. #1. Greetings, I would like to know if there is a way to disable early media or the auto generated ring back tone when using web client or 3CX Apps , When dialing external numbers for example, user hears a ring back tone while 3CX is trying to connect the call ... Then the actual ringing tone, busy tone or whatever the response ...

Aug 4, 2023 · Place Test Calls. To confirm your extension is online, try placing test calls from the affected extension to. Your voicemail (Dial 555 ). Other extensions on your 8x8 system. If successful, try calling two or three phone numbers out of your 8x8 network again. No resolution? Promote new songs, friends activity, special occasion’s tones, like world cup or sponsored, with Seasonal or Evergreen Campaigns, on certain dates and on special occasions, directly to the users’ phone with an easy to use, wizard based, campaign management tool. (e.g. Find the No1 song of the day you were born and let those calling you hear ... RFC 3960 Early Media and Ringing Tone Generation December 2004 If the UAC receives early media from different UASs, it needs to present it to the user. If the early media consists of audio, playing several audio streams to the user at the same time may be confusing. On the other hand, other media types (e.g., video) can be presented to the user at the same …"Ring Back Tone" (통화연결음) is the first collaboration digital single by MJ (SUNNYSIDE) and Boramiyu. It was released on August 14, 2022 as part of Re:born Project+ (also written as Project Ribbon Plus). It was a remake of the song "Ring Back Tone" by Sunny Hill from their 2007 debut single album...China Mobile. Relying on VOLTE technology, the video ring back tone is an exclusive black technology service launched by China Mobile based on the 5G core network innovation. It has fully upgraded the call negotiation mechanism between the caller and the called party. When the user makes a call, he will no longer hear a piece of traditional ...

BSNL caller tunes are ringing back tone. The operator allows you to activate or deactivate the caller tune as per your wish. Bharat Sanchar Nigam Limited has introduced a service- Personalized Ring Back Tone (PRBT) service, through which BSNL subscribers can set jingles/movie songs/funny tunes or album songs as their caller tunes …The Global Ring Back Tones Market was valued at USD 5 Billion and is projected to reach a market size of USD 6.67 Billion by the end of 2030. Over the forecast period of 2024-2030, the market is projected to grow at a CAGR of 4.2%. Market Overview. Ringback tones are audio files that are played to callers while they wait for their phone calls ...Musketeers. ซื้อ 20 บาท. เปลี่ยนตัวผู้เล่น (Time to Shine) bamm. ซื้อ 20 บาท. แค่อยากรบกวนให้เธอมารักกันได้ไหม. Ta noppawit. ซื้อ 20 บาท. ยินดีไปทั้งน้ำตา. Verizon ringtones. One of the easiest ways to get ringtones on an Android phone is to download the Verizon Tones app from the Google Play™ store. From the app, you can purchase and download from a broad selection of great ringtones. You’ll also be able to set specific ringtones for certain contacts and set up a ringback tone that plays for ... Fenomena Musik Ring Back Tone (RBT): Kapitalisme, Budaya Popular, dan Gaya Hidup ABSTRACT  RBT music is a phenomenon enjoyed by millions  of fans.  RBT, better known as ring back tones  have become part of the lifestyle  of subscribers.  Ring back tones have sound meanings  (as music) which are experienced by callers after … Step 3: Personalize Tones. To create personalized tones for AT&T, go to ‘ Manage Ringback Tones ‘ link and then go to ‘ Callers and Groups ‘ section. Add callers to specific answer tones by listing their numbers. With that, your job is done. Just save changes and log out. Feb 4, 2010 · With a Ring Back Tone, the phone user selects a song instead of the standard ringtone for his/her callers to hear before the phone is answered. 3. Is Ring Back Tone service available to all Digicel customers? The Ring Back Tone service is a network feature and is compatible with all Digicel phones. 4. Ring-back Tones platform let Mobile Network Operators to offer subscribers to set music to be heard by someone calling to them while establishing a call. The platform let subscribers through IVR, SMS, USDD, WAP, WEB or Smartphone Application to browse through a great variety of categorized audio content, and configure the same ring-back tone for all …

Download PDF. The following terms and conditions apply to Safaricom’s SKIZA Tunes Service (“SKIZA”) and by utilising the SKIZA Tunes Service you will be deemed to have read, understood and accepted the same. 1. Description of the Service. The SKIZA Tunes service is a personalized ring back tone service whereby you can download or record a … Click the “Ringback Tones” tab and browse the categories or enter a search term in the Search box. Click the “Search” menu and choose “Ringback Tones” to include only ringbacks in your search results. The Media Store also sells jukeboxes, which are bundles of ringbacks that play in rotation. Click “Jukeboxes” to browse Verizon's ... to use LM567 tone detecting IC's. The tones are dual tones that are switched. on-off at a determined rate. You could AND gate two 567 outputs, and time. the pulses. to detect a valid signal. IE: "Precise" busy signal is 480HZ and 620 HZ. @ -24dBmo. per tone interupted 0.5 sec on, 0.5 sec off.Apr 17, 2013 · You are still hearing a ring back tone because the ITSP is providing session progress. The 183 message is used by the called gateway to provide media to the calling gateway prior to the call being completed. This media can be used to play anouncements, ringback or music to the calling gateway prior to the call actually being completed. A choice of more than 10,000 new and old mega hits from the best Arabic, Bollywood and Western artists - the widest range in the UAE sourced from du’s exclusive arrangements with renowned content providers like Rotana and Hungama are available which means callers now literally have a world of choice to personalize the ringing tone that people hear.

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Oct 17, 2023 · II. The Beginnings of Ringback Tones. Origins of the Ringback Tone Ringback tones were first introduced as a way for mobile phone users to customize their calling experience. They replaced the standard ring sound that callers heard while waiting for someone to answer with a short audio clip of music or other sounds. 1.7K views, 121 likes, 3 loves, 3 comments, 6 shares, Facebook Watch Videos from stc Bahrain: This Eid, add up to 5 Ring Back Tones in a single shuffle... 1.7K views, 121 likes, 3 loves, 3 comments, 6 shares, Facebook Watch Videos from stc Bahrain: This Eid, add up to 5 Ring Back Tones in a single shuffle playlist and greet all those who call you with... Spacy Ringback. Ringback funny. Country boy. Grandma Ringback. Oceans. Head over heels. Leave A Message. Search free ringback tones Ringtones on Zedge and personalize your phone to suit you. Start your search now and free your phone. Find millions of popular wallpapers and ringtones on ZEDGE™ and personalize your phone to suit you. Start your search now and free your phoneCaller Ring Back Tone (CRBT) is one of the many value-added services that has seen incredible adoption in recent years. This service allows customization of the ring back tone. When a call is placed, the caller hears an audible alert through the phone. The alert indicating that a call is successfully going through is called the ring back tone.Problems with Ring back tone. No 180 Ringing via cisco CUBE (sip-sip) alexver1978. Level 1. Options. 04-26-2018 11:10 AM - edited ‎03-17-2019 12:42 PM. Hi, There is no RBT in the incoming call from ISP to CUCM via CUBE. There are no 180 Ringing or 183 Session Progress in call leg (ISP - CUBE) but in call leg (CUBE-CUCM) …

BSNL has teamed-up with OnMobile Asia Pacific Pvt. Ltd., to install the Ring back tone services for the South zone covering the 4 circles of Tamil Nadu, Chennai, Andhra Pradesh, Karnataka and Kerala.Jun 18, 2014 · Here we aren't taking about ringback tone , the call is in answered state. If you look at the cucm traces you will get to know how call was answered and moh was played. Here is the time line from the traces... 14:10:44.570 - INVITE sent to CUCM by VG 14:10:44.590 - INVITE relayed to CUC 14:10:44.607 -Received ringing and sent back ringing to VG SKT’s LTE and 5G subscribers can sign up for the V Coloring service online or offline and download the V Coloring app from Google Play or One Store. Customers can choose to have different video ringback tones play for different contacts or at different times of the day. In 2002, SKT launched the world’s first ringback tone service named ...I dont think there is any way to change the ring back tone on CUCM. In your query you mentioned UCCX. You can change what the users hear when UCCX transfers the call to the agent. UCCX uses a consult transfer to send calls to the agent, so you're not going to hear ringback, you're going to hear the network MOH source as configured on …Choose the User Info for Ring Back Tone option if you use inter-cluster trunks and any of the clusters run Cisco CallManager version 3.1 or earlier. However, if all of the clusters run Cisco CallManager 3.2(2a) or a later release, choose the H225 Info for Ring Back option. Default: User Info for Ring Back Tone. ToSendH225UserInfoMsg in Cisco ...But when a caller calls you while waiting for you to pick up their call, you hear a song or musical tone. This sound you hear while the recovery picks up the call is …Dial tone - 425 continuous Ringing tone - 425 1.0 on 4.0 off Call waiting tone - 425 0.2 on 0.2 off 0.2 on 1.4 off Algeria (People’s Democratic Republic of) Busy tone - 425 0.5 on 0.5 off Ringing tone - 425 1.5 on 3.5 off Andorra (Principality of) Busy tone - 425 0.2 on 0.2 off Click the “Ringback Tones” tab and browse the categories or enter a search term in the Search box. Click the “Search” menu and choose “Ringback Tones” to include only ringbacks in your search results. The Media Store also sells jukeboxes, which are bundles of ringbacks that play in rotation. Click “Jukeboxes” to browse Verizon's ... A ringback tone is the music or sound that someone hears when they call your phone, before you answer the call. It’s a great way to add some personality and flair to your phone, and show off your favorite songs or artists. In this article, we’ll explore what ringback tones are, how they work, and why you should consider getting one.

Dec 22, 2023 · To change your ringback tone on your Samsung phone, follow these simple steps: 1. Open the settings menu on your phone. 2. Scroll down and tap on “Sounds and Vibration” or a similar option. 3. Look for the “Ringtone” or “Phone ringtone” option and select it. 4. You will see a list of available ringback tones.

Your Mom Is Calling. Mom. Mom Is Calling. Ur Daddy Is Calling. can i call you back. Mom Is Calling. Your Mummas Calling. Search free call back Ringtones on Zedge and personalize your phone to suit you. Start your search now and free your phone.Dec 7, 2004 · T-Mobile USA subscribers across the country now can ditch the dull switchboard ring that their callers hear, in favor of a tune that represents their unique style, with the launch today of T-Mobile's ringback tone service, CallerTunes. T-Mobile is the first company to launch a ringback tone service nationwide. Choose the User Info for Ring Back Tone option if you use inter-cluster trunks and any of the clusters run Cisco CallManager version 3.1 or earlier. However, if all of the clusters run Cisco CallManager 3.2(2a) or a later release, choose the H225 Info for Ring Back option. Default: User Info for Ring Back Tone. ToSendH225UserInfoMsg in Cisco ...Ring Tune Services. Note4U. Note4U service allows you to set a specific message for your callers and can display to your callers the set message like your status, without even answering the call . ... Entertain your callers by replacing the standard ring back tone with your choice of music .There are two parts; a Ring Back Tones Store and a Music Store. What does CRBT or RBT Mean? CRBT means Caller Ring Back Tone (or RBT) it is the sound you hear when you call someone before they answer. Typically these are … Click the “Ringback Tones” tab and browse the categories or enter a search term in the Search box. Click the “Search” menu and choose “Ringback Tones” to include only ringbacks in your search results. The Media Store also sells jukeboxes, which are bundles of ringbacks that play in rotation. Click “Jukeboxes” to browse Verizon's ... The ringing tone people hear when calling your cell phone abroad. Do people calling my cellphone hear a different ringing (a.k.a. ringback tone) when I am abroad? Short …We would like to show you a description here but the site won’t allow us.RFC 3960 Early Media and Ringing Tone Generation December 2004 If the UAC receives early media from different UASs, it needs to present it to the user. If the early media consists of audio, playing several audio streams to the user at the same time may be confusing. On the other hand, other media types (e.g., video) can be presented to the user at the same …

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Layanan Ring Back Tone (RBT) adalah layanan berbayar untuk pengganti dan personalisasi nada sambung standar.Layanan ini bisa bikin telponan kamu jadi tambah seru. Eskpresikan diri kamu dengan lagu-lagu hits yang keren banget! Dengan melakukan aktivasi dan berlangganan RBT, lagu-lagu pilihan kamu akan dimainkan setiap kali kamu …Step 3: Personalize Tones. To create personalized tones for AT&T, go to ‘ Manage Ringback Tones ‘ link and then go to ‘ Callers and Groups ‘ section. Add callers to specific answer tones by listing their numbers. With that, your job …Aug 4, 2023 · Place Test Calls. To confirm your extension is online, try placing test calls from the affected extension to. Your voicemail (Dial 555 ). Other extensions on your 8x8 system. If successful, try calling two or three phone numbers out of your 8x8 network again. No resolution? Description of the Service. SKIZA Tunes is a personalized ring-back tone service offered by Safaricom.With SKIZA, you can download or record your favorite tunes or messages at a nominal fee. These tunes can be played to your callers while they wait for you to answer the call, creating a unique and entertaining experience.Promote new songs, friends activity, special occasion’s tones, like world cup or sponsored, with Seasonal or Evergreen Campaigns, on certain dates and on special occasions, directly to the users’ phone with an easy to use, wizard based, campaign management tool. (e.g. Find the No1 song of the day you were born and let those calling you hear ...If SBC receives the SIP Refer message, but PSTN users still don't hear a ring tone, make sure that SBC connects to the newly initiated transfer call and plays a ring tone that's based on the "SIP 180 Ringing" or "SIP 183 Session "response that's sent from the SIP proxy. Additional memory in the leg that goes towards PSTN and towards teams …1.7K views, 121 likes, 3 loves, 3 comments, 6 shares, Facebook Watch Videos from stc Bahrain: This Eid, add up to 5 Ring Back Tones in a single shuffle... 1.7K views, 121 likes, 3 loves, 3 comments, 6 shares, Facebook Watch Videos from stc Bahrain: This Eid, add up to 5 Ring Back Tones in a single shuffle playlist and greet all those who call you with...Hollywood sound effects for TV, film, ads and video games. Make sure your spelling is correct. Otherwise, try browsing our categories below. Free ringback sound effects. Download royalty-free ringback sounds from our library … ….

Apr 17, 2013 · You are still hearing a ring back tone because the ITSP is providing session progress. The 183 message is used by the called gateway to provide media to the calling gateway prior to the call being completed. This media can be used to play anouncements, ringback or music to the calling gateway prior to the call actually being completed. Tap a ringtone or alert tone to hear it and set it as the new sound. Set a ringtone or text tone for a contact. Open the Contacts app and tap a person's name. In the upper-right corner of the person's contact card, tap Edit. Tap Ringtone or Text Tone, then choose a new sound. Buy ringtones. You can use the Tone Store to buy new sounds.Video Ring Back Tone(RBT) is accessible when making a voice or video call over VoLTE network. A short video is played on the caller’s mobile phone before the call is answered. Since 2016, Huawei, in partnership with China Mobile, has done a lot of innovative work for Video Ring Back Tone(RBT) and has also released relevant service …10-27-2015 06:04 AM. Alex, This is not a configuration issue. This is how ringback works over sip trunks.. When CUCM receives 180 ringing (without SDP) CUCM plays rigback locally. It instructs the ip phone to play ring back.. When CUCM receives 183 with SDP, it tells the phone to cut through audio and listen to whatever the far end is sending.Ingin mengganti ke layanan RBT (Ring Back Tone) yang lebih baru dan lebih fleksibel. Cara Mematikan NSP Telkomsel. Ada beberapa cara untuk mematikan NSP Telkomsel, di antaranya melalui SMS, telepon, dan aplikasi MyTelkomsel. Melalui SMS. Untuk mematikan NSP Telkomsel melalui SMS, ikuti langkah-langkah berikut: Buka …Ringback number. A ringback number is a telephone number for a telephone line that automatically calls the line that the call was placed from, after the caller has hung up. The typical use of this facility is by telephone company technicians for testing a new installation or for trouble-shooting. [1]ททท. จับมือ บมจ. ทรู คอร์ปอเรชั่น เปิดตัวบริการ Video Ring Back Tone (VRBT) ภายใต้แคมเปญ “โทรเมื่อไหร่ Amazing เมื่อนั้น” นำเสนอประสบการณ์ท่องเที่ยวในประเทศไทย ทั้ง ...To keep the same tone in your Ringback Tone profile, you will receive a text message to renew your tone before the expiry date. You will then be charged RM2 each on subsequent renewals. For instance, if you purchase two tones the first time for RM6, you will need to pay RM4 on subsequent renewals should you decide to keep both tones. Ring back tone, 2. Sep 1, 2021. #1. Greetings, I would like to know if there is a way to disable early media or the auto generated ring back tone when using web client or 3CX Apps , When dialing external numbers for example, user hears a ring back tone while 3CX is trying to connect the call ... Then the actual ringing tone, busy tone or whatever the response ..., Hollywood sound effects for TV, film, ads and video games. Make sure your spelling is correct. Otherwise, try browsing our categories below. Free ringback sound effects. Download royalty-free ringback sounds from our library of 450000+ SFX for TV, film and video games. , Video Ring Back Tone(RBT) is accessible when making a voice or video call over VoLTE network. A short video is played on the caller’s mobile phone before the call is answered. Since 2016, Huawei, in partnership with China Mobile, has done a lot of innovative work for Video Ring Back Tone(RBT) and has also released relevant service …, Nada sambung. Nada sambung ( Inggris: ring-back tone) adalah suara yang diperdengarkan di jalur telepon oleh pihak penelepon setelah selesai melakukan pemanggilan dan sebelum panggilan dijawab oleh pihak yang dihubungi. Versi personal dari nada sambung disebut nada sambung pribadi. Nada sambung dapat berbeda-beda di setiap negara tergantung ... , 外語: RBT: Ringing Back Tone 品詞:名詞 発呼者に回線交換作業が終了し、被呼者を呼び出し中であることを知らせるための音。「呼び出し音」ともいう。, Oct 17, 2023 · II. The Beginnings of Ringback Tones. Origins of the Ringback Tone Ringback tones were first introduced as a way for mobile phone users to customize their calling experience. They replaced the standard ring sound that callers heard while waiting for someone to answer with a short audio clip of music or other sounds. , Ringback tones of popular songs were common in the early 2000s with the rise of cell phones. Because any audio file played in place of ringing will be interrupted when the …, Feb 16, 2017 · Ringback tones through a VoIP system comprise of SIP (Session Initiation Protocol) -based commands sent as part of a SIP Invite when a call is initiated. They are known as "extension headers" and help generate the various tones. These commands set the frequency, rhythm and duration of the tone, with each country having their own unique ringback ... , A ringback tone is the music or sound that someone hears when they call your phone, before you answer the call. It’s a great way to add some personality and flair to your phone, and show off your favorite songs or artists. In this article, we’ll explore what ringback tones are, how they work, and why you should consider getting one. , Dec 22, 2023 · To change your ringback tone on your Samsung phone, follow these simple steps: 1. Open the settings menu on your phone. 2. Scroll down and tap on “Sounds and Vibration” or a similar option. 3. Look for the “Ringtone” or “Phone ringtone” option and select it. 4. You will see a list of available ringback tones. , In the iTunes Store on iPhone, buy ringtones, text tones, and other alert tones for clock alarms and more., Click the “Ringback Tones” tab and browse the categories or enter a search term in the Search box. Click the “Search” menu and choose “Ringback Tones” to include only ringbacks in your search results. The Media Store also sells jukeboxes, which are bundles of ringbacks that play in rotation. Click “Jukeboxes” to browse Verizon's ... , Here are some simple steps you can take to set your ringback tone on Verizon: Step 1: Open the Verizon Tones app. If you don’t already have the Verizon Tones app on your phone, you’ll need to download it from the app store. Once it’s installed, open the app and navigate to the “Ringback tones” section. Step 2: Browse ringback tones., How to change a ring back tone for the country your Switchvox is located in. Number of Views 649. How to change ring back tone. Number of Views 1.06K. How do I fix issues with ringback with FreePBX and Digium Digital card. Number of Views 1.26K. How to configure a Digium E1 PRI card., The Evolution of Ringback Tones: From Simple Sounds to Dynamic Video Experiences The evolution of ringback tones has come a long way, from the simple sounds of traditional phone rings to now offering dynamic video experiences. With advancements in technology, users can personalize their ringback tones to reflect their unique style and …, If it is a CQ you might here a ring back tone first, not sure if MS sends a 180 Ringing with SDP or without (with or with out ring back tone media). And shortly after that you should here the Welcome message or directly the On Hold music. If it is a AA you should here the Welcome message and then the IVR menu. /Linus. 0 Likes., How To Remove a Particular Ringback Tone. Just follow the simple steps below on how to deactivate or unsubscribe ring back tone from Globe. Just type STOP(Space) (RBT CODE) then to 2332. To …, Predicted to be a major revenue earner for both network operators and the music industry, personalised ringback tones allow phone users to replace the standard ringing sound heard before the call connects with music, comedy or movie clips. The survey published today by Alatto Technologies shows 37%. of all consumers aged 15-49 would …, For a more technical description, according to Wikipedia, the ringback tone is an audible indication that is heard on the telephone line by the caller while the phone they called is still in use. It is normally a repeated tone, designed to assure the calling party that the called party’s line is ringing, although the ring-back tone may be out ..., Users should be compensated for assigning advertising messages as their ring‐back tones. Compensation can be done in various ways, such as receiving free minutes, free SMSs, free ring‐back tones, donation to charity, downloadable application or WAP based benefit programs, etc., RBT is one of the most popular VAS services during last 5 years. Its penetration is still visibly growing and generating stable income for Operators. PROTEI-RBT system is a fast way to offer Ring Back Tone service to subscribers. Due to platform’s flexibility and scalability the system can be easily adjusted according to current or new ..., How to change a ring back tone for the country your Switchvox is located in. Number of Views 649. How to change ring back tone. Number of Views 1.06K. How do I fix issues with ringback with FreePBX and Digium Digital card. Number of Views 1.26K. How to configure a Digium E1 PRI card., Dec 7, 2004 · T-Mobile USA subscribers across the country now can ditch the dull switchboard ring that their callers hear, in favor of a tune that represents their unique style, with the launch today of T-Mobile's ringback tone service, CallerTunes. T-Mobile is the first company to launch a ringback tone service nationwide. , A local ringback tone is the signal tone that is heard by callers while the destination’s phone is ringing. Ringback tones can be customized. USA: +1 (561) 908-6171 • APAC: +66 (60) 002-4172 ... Reach out and a Global Call Forwarding expert will get back with you shortly. Contact Us., Ring Back Toneの意味や使い方 呼出音 - 約821万語ある英和辞典・和英辞典。発音・イディオムも分かる英語辞書。, Quick math lesson: there is an average of 12 billion phone calls made per day; in those calls, an average of 10 seconds is spent listening to the brrng-brrng sound. …, 1) The ringback tone global market size is huge. There are about 150-200 million ringback tone subscribers in the world, and the industry is valued at about $4 billion and growing (based on 2011 survey). Many in the industry see ringback tones as an old feature-phone service that didn’t survive the transition to smartphones., The Platform. Ring Back Tones Platform is an end-to-end solution for RBT service, including all the core components responsible for music playing, billing, provisioning, subscription management, all the sales & self-care channels (IVR, SMS, WAP, WEB Responsive, App and USSD) and supporting tools like monitoring, customer care or …, Download PDF. The following terms and conditions apply to Safaricom’s SKIZA Tunes Service (“SKIZA”) and by utilising the SKIZA Tunes Service you will be deemed to have read, understood and accepted the same. 1. Description of the Service. The SKIZA Tunes service is a personalized ring back tone service whereby you can download or record a …, Local ringback tones are a great way to make callers comfortable and engaged when they call your international business phone number. USA: +1 (561) 276-7156 | APAC: +66 (60) 002 ... A ringback tone is the sound …, CRBT is a service for a user to customize a ring tone so that the CRBT system plays a piece of sweet music or a greeting for the calling user to replace the ordinary ring back tone. It is a basic service in the communication value-added service realm. CRBT brings rich and colorful service experience to users and lucrative benefits to operators. It is the …, This ability to personalize Ring Back Tones (RBT) has opened new and exciting doors for MTN subscribers, Content Owners, and Artistes. An enhanced and user friendly CallerTunez is being introduced by MTN. The new features will provide customers several ways to sample and subscribe to the service., 外語: RBT: Ringing Back Tone 品詞:名詞 発呼者に回線交換作業が終了し、被呼者を呼び出し中であることを知らせるための音。「呼び出し音」ともいう。