ESEMPI

Configuring Cisco Call Manager Express with 2N VoiceBlue VoIP GSM Gateways

Configuring SIP Trunk Support of CCME
This procedure enables SIP trunk support of the following parameters:

• Call forwarding over SIP networks—call-forward pattern and calling-number local commands
• Call transfer over SIP networks—transfer-system and transfer-pattern commands
• DTMF relay—dtmf-relay rtp-nte or dtmf-relay sip-notify command and notify telephone-event max-duration command
• SIP registrar—registrar, retry, and timers commands

Summary of steps

1. enable
2. configure terminal
3. telephony-service
4. call-forward pattern pattern
5. calling-number local
6. transfer-system {full-blind | full-consult}
7. transfer-pattern transfer-pattern
8. exit
9. dial-peer voice tag voip
10. dtmf-relay rtp-nte
11. dtmf-relay sip-notify
12. exit
13. sip-ua
14. notify telephone-event max-duration time
15. registrar {dns:host-name | ipv4:ip-address} expires seconds [tcp] [secondary]
16. retry register number
17. timers register time
18. exit

Using a 2N VoiceBlue VoIP GSM Gateways (2N VoiceBlue Lite, 2N VoiceBlue Enterprise) with Cisco Call Manager Express (CCME) is suitable for small and middle-size companies. It is possible to implement a GSM Gateway into the company's VoIP network using the configured SIP trunk. Implementation of a GSM Gateway into the VoIP network cuts costs and increases the communication potential.