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Unable to answer call

From a digital phone, user has parameter a forward on his IP phone. Sometimes when he receives a call on his IP phone, after pick up, the phone is always ringing and the first program group button “lights” with orange color and he can't speak with the caller.

Model phone is 7942G, and version of call manager is


Re: Unable to answer call

What kind of gateway are you using to connect to the PSTN and what kind of interface to the PSTN?

Community Member

Re: Unable to answer call

The model is a Cisco 2851.

The interface used is a “controller E1” linked on T2 line (implemented with 15 channels) provide by Orange French supplier.

Community Member

Re: Unable to answer call

Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(15)T5, RELEASE SOFTWARE (fc4)

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

System image file is "flash:c2800nm-spservicesk9-mz.124-15.T5.bin"

Cisco 2851 (revision 53.51) with 249856K/12288K bytes of memory.

Processor board ID FCZ121670ER

2 Gigabit Ethernet interfaces

16 Serial interfaces

1 Channelized E1/PRI port

DRAM configuration is 64 bits wide with parity enabled.

239K bytes of non-volatile configuration memory.

126976K bytes of ATA CompactFlash (Read/Write)

Re: Unable to answer call


Please specify if this happen internally or also with external calls,

Also to show the scenario more clear:

If the phone ring, and you pick up the headset, the call isn't answered , then you press answer sofkey to answer the call, or the call fail at all

Best Regards

Community Member

Re: Unable to answer call

When the phone ring, after pick up the handset, in the same time the phone always ring and the “first program group button” light in orange colour and he can press on every buttons the call fail.

He did not answer, but I think it only happens when the PBX phone is forwarded

to his IP phone.If that is true, it would

be an external call forwarded to an internal IP phone.

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