No voice between iPhone and softclient

Asterisk Asterisk Support
1

Hi

I’ve just started to configure an Asterisk system for the first time. And I can get my iPhone make a call to a softphon on my pc via Asterisk on another Ubuntu system. Nice!

But theres no voice between the iPhone (runngin iSip) and the softphone (Zoiper).

I can call both of them (the iPhone or the softphone) from the CLI and can here me speaking on ubuntu. I’ve also a “Hello World” test, if I call it from on of the clients I can hear the “Hello World” message. But I cannot get the two clients to hear something from each other.

Any idea about what could be wrong?
Thanks for your help!
Ernst

This is my sip.conf:

[general]
port=5060 
bindaddr=0.0.0.0 

[2000]
type=friend 
secret=1234
host=dynamic

[2001]
type=friend 
secret=1234
host=dynamic

And my extensions.conf

[default]
; Die Extension 1001 wird als Funktionstest
; für alle Telefone benutzt.
;
exten => 1001,1,Answer()  ; abgehoben
exten => 1001,2,Playback(hello-world)
exten => 1001,3,Hangup()  ; aufgelegt

; Mit der Extension 2000 wird zum SIP-Telefon
; 2000 verbunden.
;
exten => 2000,1,Dial(SIP/2000)
exten => 2001,1,Dial(SIP/2001)
2

hi,

if the client rings, but not able to talk to each one, then it might be due to unmatched codec.

regards,

3

Thanks for the quick answer.

Sorry for the newbee question: How can I fix this?

Best Regards
Ernst

4

hi,

you might consider puting these in for each sip accounts in sip.conf

nat=yes
canreinvite=no
disallow=all
allow=alaw
allow=ulaw
context=

it tells asterisk that you are using codec g711 which in most cases supported by your sip clients.

5

Thanks for the tip. Unfortunately I’m not sure what I have to enter for context in

That is what I tried in sip.conf:

[general]
port=5060 
bindaddr=0.0.0.0 

[2000]
type=friend 
secret=1234
host=dynamic
nat=yes
canreinvite=no
disallow=all
allow=alaw
allow=ulaw
context=<general>

[2001]
type=friend 
secret=1234
host=dynamic
nat=yes
canreinvite=no
disallow=all
allow=alaw
allow=ulaw
context=<general>

But now I cannot make phone calls at all. CLI says:

[May 14 15:49:16] NOTICE[1915]: chan_sip.c:20039 handle_request_invite: Call from '2001' to extension '2000' rejected because extension not found.

I also tried

context=<2000> and context=<2001>
with the same result.

Any ideas?
Best Regards
Ernst

6

context would be the context in your dialplan (extensions.conf) that handles the incoming/outgoing calls. Perhaps you should (re)read the section on Basic Dialplans in the book, as this is pretty elementary stuff.

In your case since you only have the [default] context, you’d enter

under each extension in sip.conf.

7

Hurray! Internal basecal is working.

Thanks for all the support!
Ernst