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How Voice Logica connects

Section titled “How Voice Logica connects”

The NEC registers its SIP trunks to Voice Logica (way 1) in registration mode. Voice Logica creates the trunk and gives you a server, a username and a password. Programming is in PCPro or WebPro; the SL2100, SL1100 and SV9100 use the same program numbers.

  • Calls the NEC sends out on the Voice Logica trunk group are answered by the AI agent.
  • The agent transfers callers back with the extension number; DID translation (22-11) rings the extension.

Before you start

Section titled “Before you start”
  • IP trunk licences: SL2100 includes 4 SIP trunks (more with licences); SV9100 includes 4; SL1100 needs them activated (Feature Activation). A Warm transfer uses two trunks until it connects.
  • 10-40 IP trunk availability on, with the port count. SL1100: 10-03 VoIP card = SIP, 10-19 DSP for IP trunks. SV9100: DSP resources in 10-54, trunks in 10-68.

1. Create the connection in Voice Logica

Section titled “1. Create the connection in Voice Logica”

Telephony - Trunks - Connect your PBX, pick NEC and the agent. Keep the dialog open until it says Connected.

2. Program the SIP trunks

Section titled “2. Program the SIP trunks”
  1. 10-28 SIP System Information: Domain Name = the server, Host Name = the server, Transport UDP, User ID = the username.
  2. 10-29 SIP Server Information: Outbound Default Proxy on, Proxy = the server, port 5060, Registrar = the server, port 5060, Register Mode = Manual, Register Sub Mode = off.
  3. 10-30 SIP Authentication: User Name = the username, Password = the password.
  4. 84-13 SIP Trunk CODEC: G.711 Type = A-law, DTMF = RFC2833 (SV9100: 84-34-01, payload 101).
  5. 84-14: Called Party Info = Request URI.
  6. Upload to the system; reset if PCPro asks.

3. Send calls to the agent

Section titled “3. Send calls to the agent”

Put the Voice Logica trunks in their own trunk group (14-05) with an access code (11-09), or route a code through LCR (26-02 / 26-05). For a number or after-hours calls, forward that destination to a number dialled on that group.

4. Let the agent transfer back to extensions

Section titled “4. Let the agent transfer back to extensions”

22-02 = DID on the Voice Logica trunks, 22-09 receive digits, and 22-11 DID translation: map each number the agent sends (for example 201) to the extension. Then, in Voice Logica, add each extension as a transfer destination (External with the number, or a User with that extension) and use Warm transfer.

5. Check it works

Section titled “5. Check it works”
  • The dialog says Connected.
  • Dial the trunk-group code: the call appears in Calls.

Good to know

Section titled “Good to know”
  • In registration mode, each extension’s 21-19 Calling Party Number must be the registered number; with Register Sub Mode on, only calls to that number come in.
  • SIP dialling is en-bloc: the interdigit timer 21-01-03 decides when the number is sent.
  • Behind NAT: 10-12-06 / 07 and 10-29-21 (NAT settings). Turn off SIP ALG.