Callcentric is a service that provides VoIP based Broadband Phone service using the SIP protocol for personal / residential and business users. Services include outbound calling (termination), inbound calling (Origination / DID / DDI ) within the USA, Canada, and other countries. Callcentric supports softphones, VoIP ATA's, VoIP Phones, and IP PBX equipments such as ASTERISK . With the Online Calling Card feature you can use your Callcentric account to place calls from a regular phone such as a Cell/Mobile phone while on the road. Calls placed using the Calling Card feature are billed at Callcentric's low Pay Per Call rate plan calling rates, regardless of which rate plan you have on your account. Here is a basic configuration.
1 Edit file sip.conf: Add/change [general] section to indicate the following parameters: [general] dtmfmode = rfc2833 context=from-callcentric srvlookup=yes register => 1777MYCCID:SUPERSECRET@callcentric.com/1777MYCCID session-timers=refuse session-expires=180 session-minse=90 session-refresher=uas Add the following section to handle calls to/from callcentric: [callcentric] type=peer context=from-callcentric host=callcentric.com defaultuser=1777MYCCID secret=SUPERSECRET fromuser=1777MYCCID fromdomain=callcentric.com insecure=port,invite Add a section to handle calls to/from your SIP phone. This is just a sample. Refer to Asterisk documentation and your SIP phone documentation for details. 123 is the extension of your phone: [123] context=to-callcentric type=friend username=123 secret=PASSWORD host=dynamic 2 Edit the file extensions.conf: Add the following section to route calls FROM callcentric TO your SIP phone with extension 123: [from-callcentric] exten => s,1,Dial(SIP/123) Add the following section to route calls FROM your SIP phone TO callcentric: [to-callcentric] exten => _X.,1,Dial(SIP/${EXTEN}@callcentric) 3 Verify Asterisk operations Connect to asterisk console by running: asterisk -r Verify that Asterisk is registered to callcentric with console command 'sip show registry' *CLI> sip show registry Host Username Refresh State callcentric.com:5060 1777MYPHONE 17 Registered Verify that your SIP phone is registered to Asterisk with console command 'sip show peers' pbx*CLI> sip show peers Name/username 123/123 Host 10.11.22.33 Dyn Nat ACL D Mask 255.255.255.255 Port 5060 Status Unmonitored If you see Host as "(Unspecified)" and Port as "0", then your SIP phone is not configured correctly. Disconnect from Asterisk by typing "exit". 4 Placing Test Calls You can make a test call to 17771234567, or if you are signed up for one of Callcentric's rate plans you can place a call to a traditional landline or mobile phone by dialing either: 1 + the area code and number for calls to the US Or 011 + the country code, area code, and number for calls worldwide (you may also use 00 instead of 011). Read more on CallCentric's website ...
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